GB2417385B - Acoustic device with a noise reduction unit - Google Patents
Acoustic device with a noise reduction unitInfo
- Publication number
- GB2417385B GB2417385B GB0516762A GB0516762A GB2417385B GB 2417385 B GB2417385 B GB 2417385B GB 0516762 A GB0516762 A GB 0516762A GB 0516762 A GB0516762 A GB 0516762A GB 2417385 B GB2417385 B GB 2417385B
- Authority
- GB
- United Kingdom
- Prior art keywords
- noise reduction
- reduction unit
- acoustic device
- acoustic
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
- G10K11/17827—Desired external signals, e.g. pass-through audio such as music or speech
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
-
- G10K11/1788—
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17885—General system configurations additionally using a desired external signal, e.g. pass-through audio such as music or speech
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
- G10K2210/1081—Earphones, e.g. for telephones, ear protectors or headsets
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3224—Passive absorbers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Headphones And Earphones (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2004200828790U CN2744105Y (en) | 2004-08-17 | 2004-08-17 | A low-cost and high-efficiency anti-noise earphone and supporting device |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0516762D0 GB0516762D0 (en) | 2005-09-21 |
GB2417385A GB2417385A (en) | 2006-02-22 |
GB2417385B true GB2417385B (en) | 2007-11-21 |
Family
ID=35098368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0516762A Active GB2417385B (en) | 2004-08-17 | 2005-08-16 | Acoustic device with a noise reduction unit |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060067538A1 (en) |
CN (1) | CN2744105Y (en) |
GB (1) | GB2417385B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008197284A (en) * | 2007-02-09 | 2008-08-28 | Sharp Corp | Filter coefficient calculation device, filter coefficient calculation method, control program, computer-readable recording medium, and audio signal processing apparatus |
JP5363825B2 (en) * | 2009-02-04 | 2013-12-11 | 株式会社オーディオテクニカ | Noise canceling headphones |
IL236506A0 (en) * | 2014-12-29 | 2015-04-30 | Netanel Eyal | Wearable noise cancellation deivce |
CN104754436B (en) * | 2015-03-13 | 2024-01-16 | 钰太芯微电子科技(上海)有限公司 | Active noise reduction method and noise reduction earphone |
CN104967935A (en) * | 2015-06-12 | 2015-10-07 | 苏州佑克骨传导科技有限公司 | Large-power oscillator suitable for bone conduction earphone |
CN105704909B (en) * | 2016-02-25 | 2019-02-12 | Oppo广东移动通信有限公司 | circuit board and terminal |
CN109495801B (en) * | 2018-11-27 | 2020-11-06 | 上海摩软通讯技术有限公司 | Earmuff and noise reduction method of earmuff |
CN110012809A (en) * | 2019-05-07 | 2019-07-16 | 黄大伟 | A kind of intradermal rubber tapping cutter of rubber tree and rubber tapping method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997002559A1 (en) * | 1995-07-03 | 1997-01-23 | National Research Council Of Canada | Digital feed-forward active noise control system |
US5815582A (en) * | 1994-12-02 | 1998-09-29 | Noise Cancellation Technologies, Inc. | Active plus selective headset |
WO2000035243A2 (en) * | 1998-12-10 | 2000-06-15 | University Of Southampton | Noise reducing headsets |
WO2001067433A1 (en) * | 2000-03-07 | 2001-09-13 | Central Research Laboratories Limited | A method of improving the audibility of sound from a loudspeaker located close to an ear |
US20030026438A1 (en) * | 2001-06-22 | 2003-02-06 | Trustees Of Dartmouth College | Method for tuning an adaptive leaky LMS filter |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6597792B1 (en) * | 1999-07-15 | 2003-07-22 | Bose Corporation | Headset noise reducing |
-
2004
- 2004-08-17 CN CNU2004200828790U patent/CN2744105Y/en not_active Expired - Fee Related
-
2005
- 2005-02-28 US US11/068,578 patent/US20060067538A1/en not_active Abandoned
- 2005-08-16 GB GB0516762A patent/GB2417385B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5815582A (en) * | 1994-12-02 | 1998-09-29 | Noise Cancellation Technologies, Inc. | Active plus selective headset |
WO1997002559A1 (en) * | 1995-07-03 | 1997-01-23 | National Research Council Of Canada | Digital feed-forward active noise control system |
WO2000035243A2 (en) * | 1998-12-10 | 2000-06-15 | University Of Southampton | Noise reducing headsets |
WO2001067433A1 (en) * | 2000-03-07 | 2001-09-13 | Central Research Laboratories Limited | A method of improving the audibility of sound from a loudspeaker located close to an ear |
US20030026438A1 (en) * | 2001-06-22 | 2003-02-06 | Trustees Of Dartmouth College | Method for tuning an adaptive leaky LMS filter |
Also Published As
Publication number | Publication date |
---|---|
GB0516762D0 (en) | 2005-09-21 |
US20060067538A1 (en) | 2006-03-30 |
CN2744105Y (en) | 2005-11-30 |
GB2417385A (en) | 2006-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
S72 | Application for revocation before the comptroller (sect. 72/patents act 1977) |
Free format text: APPLICATION FILED; APPLICATION MADE TO THE COMPTROLLER FOR REVOCATION |
|
S75 | Amendment of patent in infringement or revocation proceedings before the comptroller (sect. 75/patents act 1977) |
Free format text: APPLICATION FILED; PATENTS FORM 15 GIVING THE COMPTROLLER NOTICE OF OPPOSITION TO THE AMENDMENTS. YOU ALSO NEED TO FILE TWO COPIES OF A STATEMENT SETTING OUT FULLY THE FACTS OF YOUR CASE AND THE RELIEF THAT YOU ARE SEEKING. TITLE OF PATENT:ACOUSTIC DEVICE WITH A NOISE REDUCTION UNIT INTERNATIONAL CLASSIFICATION: G10K NAME OF PROPRIETOR: DAVID HUANG FOR A COPY OF THESE AMENDMENTS, PHONE LITIGATION SECTION (01633 813872) |
|
S72 | Application for revocation before the comptroller (sect. 72/patents act 1977) |
Free format text: PATENT REVOKED; IN A DECISION OF THE COMPTROLLER DATED 12 NOVEMBER 2012, THE COMPTROLLER DIRECTED THAT THE REQUEST TO AMEND THIS PATENT UNDER SECTION 75 BE TREATED AS ABANDONED, AND THE PATENT BE REVOKED IN ACCORDANCE WITH SECTION 72(1) OF THE PATENTS ACT 1977 |
|
S75 | Amendment of patent in infringement or revocation proceedings before the comptroller (sect. 75/patents act 1977) |
Free format text: IN A DECISION OF THE COMPTROLLER DATED 21 NOVEMBER 2012, THE COMPTROLLER DIRECTED THAT THE REQUEST TO AMEND THIS PATENT UNDER SECTION 75 BE TREATED AS ABANDONED, AND THE PATENT BE REVOKED IN ACCORDANCE WITH SECTION 72(1) OF THE PATENTS ACT 1977 |